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Introductory statistics
The chi-square distribution
Lab 2: chi-square test of
Lab 2: chi-square test of independence
Class Time:
Names:
Student learning outcome
The student will evaluate if there is a significant relationship between favorite type of snack and gender.
Collect the data
Using your class as a sample, complete the following chart. Ask each other what your favorite snack is, then total the results.
Note You may need to combine two food categories so that each cell has an expected value of at least five.
Favorite type of snack
sweets (candy&baked goods)
ice cream
chips&pretzels
fruits&vegetables
Total
male
female
Total
Looking at
[link] , does it appear to you that there is a dependence between gender and favorite type of snack food? Why or why not?
Hypothesis test Conduct a hypothesis test to determine if the factors are independent:
H
0 : ________
H
a : ________
What distribution should you use for a hypothesis test?
Why did you choose this distribution?
Calculate the test statistic.
Find the
p -value.
Sketch a graph of the situation. Label and scale the
x -axis. Shade the area corresponding to the
p -value.
State your decision.
State your conclusion in a complete sentence.
Discussion questions
Is the conclusion of your study the same as or different from your answer to answer to question two under
Collect the Data ?
Why do you think that occurred?
Questions & Answers
Biology is a branch of Natural science which deals/About living Organism.
evolutionary history and relationship of an organism or group of organisms
AI-Robot
cell is the smallest unit of the humanity biologically
Abraham
HOW CAN MAN ORGAN FUNCTION
the diagram of the digestive system
allimentary cannel
Ogenrwot
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
Genetics is the study of heredity
Misack
how does twins formed?
Misack
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
is organisms that are similar into groups called tara
Yamosa
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Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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